Features

Digital Signal Processing Core

? 100 Million Instructions Per Second (MIPS) with an 100 MHz clock at 3.3V.

? Object Code Compatible with the 56000 core.

? Data ALU with a 24 × 24 bit multiplier-accumulator and a 56-bit barrel shifter. 16-bit arithmetic

support.

? Program Control with position independent code support and instruction cache support.

? Six-channel DMA controller.

? PLL based clocking with a wide range of frequency multiplications (1 to 4096), predivider factors

(1 to 16) and power saving clock divider (2i: i = 0 to 7). Reduces clock noise.

? Internal address tracing support and OnCE? for Hardware/Software debugging.

? JTAG port.

? Very low-power CMOS design, fully static design with operating frequencies down to DC.

? STOP and WAIT low-power standby modes.

On-Chip Memory Configuration

? 1.5K × 24 Bit Y-Data RAM.

? 1K× 24 Bit X-Data RAM.

? 8K× 24 Bit Program ROM.

? 0.5K × 24 Bit Program RAM and 192 × 24 Bit Bootstrap ROM.

? 0.75K × 24 Bit from Y Data RAM can be switched to Program RAM resulting in up to 1.25K × 24

Bit of Program RAM.

Off-Chip Memory Expansion

? External Memory Expansion Port with 8-bit data bus.

? Off-chip expansion up to 2 × 16M × 8-bit word of Data/Program memory when using DRAM.

? Off-chip expansion up to 2 × 256k × 8-bit word of Data/Program memory when using SRAM.

? Simultaneous glueless interface to SRAM and DRAM.

Peripheral Modules

? Enhanced Serial Audio Interface (ESAI): 6 serial lines, 4 selectable as receive or transmit and 2

transmit only, master or slave. I2S, Sony, AC97, network and other programmable protocols.

Unused pins of ESAI may be used as GPIO lines.

? Serial Host Interface (SHI): SPI and I2C protocols, 10-word receive FIFO, support for 8, 16 and

24-bit words.

? Four dedicated GPIO lines.